Toru Tsukada
52Patents
14h-index
16Co-inventors
77Inventor score
Filing activity: Nov 23, 1988 → Mar 20, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5492413A | Sealing device for a linear guide | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5694811A | Linear motion machine with a lubricant supply member | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5494354A | Seal device for a linear guide | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5749266A | Ball screw-nut machine with a lubricant supply member | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5087130A | Under seal device of linear movement guide bearing | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5149205A | Dust seal device of linear guide apparatus | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5906136A | Ball screw lubricated with oil-containing polymer | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5769543A | Sealing device for linear guide apparatus | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4918846A | Dust seal for a linear guide apparatus | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6019513A | Sealing device for linear guide apparatus | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5615955A | Linear guide apparatus with lubricant-containing polymer spacer balls | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4953988A | Linear guide apparatus with clamp device | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5871283A | Intermediate cover for use in a linear guide device | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5390557A | Linear guide system with integrally formed rack | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6450295B1 | Feed screw device | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4886375A | Dust-proof cover for linear guide | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5492412A | Ball retainer with an inner seal for a linear guide apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5080498A | Dust seal device of linear guide apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5308167A | Linear guide apparatus with lateral position adjusting mechanism | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5570958A | Miniature linear guide lubricated with a lubricant containing polymer | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5088839A | Overrun preventing device of a linear guide apparatus | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5013164A | Constant pressure preload linear guide bearing apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6880676B2 | Feed screw device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5308168A | Guide rail sideward displacement preventing mechanism | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5624195A | Light-weight miniature linear guide device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.